package com.li.controller;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.li.common.R;
import com.li.entity.Employee;
import com.li.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpRequest;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        // 将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());
        // 根据页面提交的用户名username查询数据库
        QueryWrapper<Employee> wrapper = new QueryWrapper<>();
        wrapper.eq("username", employee.getUsername());
        Employee emp = employeeService.getOne(wrapper);
        //如果没有查询则返回登录失败的结果
        if (emp == null) {
            return R.error("用户不存在");
        }
        //密码比对，如果不一致则返回登录失败
        if (!password.equals(emp.getPassword())) {
            return R.error("密码错误");
        }
        //查看员工状态，如果为禁用状态，则返回员工已禁用结果
        if (emp.getStatus() == 0) {
            return R.error("帐号被禁用");
        }
        //登陆成功，将员工id存入session并返回登录成功结果
        request.getSession().setAttribute("employee", emp.getId());
        return R.success(emp);

    }

    @PostMapping("/logout")
    public R logout(HttpServletRequest request) {
        //清理session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 新增员工
     *
     * @param request
     * @param employee
     * @return
     */
    @PostMapping
    public R save(HttpServletRequest request, @RequestBody Employee employee) {
        //设置初始密码123456，需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());

        //获得当前登录用户的id
//        Long empId = (Long) request.getSession().getAttribute("employee");

//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);

        return R.success("新增员工成功");

    }

    /**
     * 员工信息分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {
        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);
        //构造条件构造器
        QueryWrapper<Employee> wrapper = new QueryWrapper<>();
        //添加过滤条件
        wrapper.like(StringUtils.isNotEmpty(name), "name", name);
        //添加排序条件
        wrapper.orderByDesc("create_time");
        //执行查询
        employeeService.page(pageInfo,wrapper);

        return R.success(pageInfo);
    }

    /***
     * 根据用户id修改信息
     * @param request
     * @param employee
     * @return
     */
    @PutMapping
    public R update(HttpServletRequest request,@RequestBody Employee employee){
        long id = Thread.currentThread().getId();
        log.info("线程id为 {}",id);
//        Long empId = (Long)request.getSession().getAttribute("employee");
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser(empId);
        employeeService.updateById(employee);


        return R.success("信息修改成功");
    }

    /**
     * 根据id查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R getById(@PathVariable Long id){
        Employee employee = employeeService.getById(id);
        if (employee != null){
            return R.success(employee);
        }
        return R.error("员工信息不存在");
    }

}
